18740216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 22317064

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 47, 88, 92, 94, 184, 188, 197, 253, 376, 394, 506, 517, 788, 1012, 1034, 1081, 1576, 2024, 2068, 2162, 2167, 4136, 4324, 4334, 4531, 8648, 8668, 9062, 9259, 11891, 17336, 18124, 18518, 23782, 36248, 37036, 47564, 49841, 74072, 95128, 99682, 101849, 199364, 203698, 212957, 398728, 407396, 425914, 814792, 851828, 1703656, 2342527, 4685054, 9370108, 18740216]

約数ペア:

[(1, 18740216), (2, 9370108), (4, 4685054), (8, 2342527), (11, 1703656), (22, 851828), (23, 814792), (44, 425914), (46, 407396), (47, 398728), (88, 212957), (92, 203698), (94, 199364), (184, 101849), (188, 99682), (197, 95128), (253, 74072), (376, 49841), (394, 47564), (506, 37036), (517, 36248), (788, 23782), (1012, 18518), (1034, 18124), (1081, 17336), (1576, 11891), (2024, 9259), (2068, 9062), (2162, 8668), (2167, 8648), (4136, 4531), (4324, 4334)]